A hard disk drive assembly having a hard disk drive positioned within an enclosure. A shock support is interposed between the hard disk drive and at least one wall of the enclosure so that external shocks on the enclosure are transmitted through the shock support. The shock support can be either a rigid support made of metal or a resilient support made of elastomeric material.
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1. A method of reducing deflection of a base plate of a hard disk drive device housing,
the method comprising:
mounting a data storage device with a motor and spindle with one or more storage media components mounted on the spindle positioned within a first housing into a second housing; and
interposing a shock support between the base plate of the first housing and the second housing so that shocks are at least partially transmitted between the first housing and the second housing via the shock support wherein the shock support is sized and interposed so that the cross-sectional area of the shock support overlaps the cross-sectional area of a motor that drives the spindle and so that the shock support contacts the base plate substantially over its entire cross-sectional area wherein the shock support is formed of a resilient material that is partially pre-compressed between the first and second housing when the data storage device is not experiencing shocks.
17. A data storage assembly comprising:
a data storage device comprising:
one or more storage media components;
a spindle that receives the storage media components, wherein the spindle defines an axis;
a motor attached to the spindle which rotates the spindle and the storage media components; and
a data storage device housing that has a base plate having an inner and outer surface comprising a cross-sectional area, wherein the motor is mounted on the inner surface of the base plate;
an outer housing that receives the data storage device housing wherein the outer housing includes a first wall that has an inner surface and an outer surface positioned proximate the first wall of the data storage housing, the inner surface of the first wall of the outer housing comprising a cross-sectional area; and
a shock support interposed between an outer surface of the data storage device housing and the inner surface of the first wall of the outer housing wherein the shock support is positioned so as to intersect the axis and wherein the motor has a motor cup with a first cross-sectional area and wherein the shock support has a second cross-sectional area that is less than the cross-sectional areas of the outer surface of the base plate of the data storage device housing and the inner surface of the first wall of the outer housing and the shock support is positioned such that the first and second cross-sectional areas overlap and so that the shock support contacts the outer surface of the base plate of the data storage device housing substantially over all of the second cross-sectional area.
4. A data storage assembly comprising:
a data storage device comprising:
one or more storage media components arranged into a stack;
a spindle wherein the one or more storage media components are mounted to the spindle;
a motor attached to the spindle which rotates the spindle; and
a data storage device housing having a first wall with an inner surface and an outer surface, the outer surface of the first wall of the data storage device housing comprising a cross-sectional area, wherein the motor, the spindle and the one or more storage media components are mounted within the data storage device housing and wherein the motor is mounted on the inner surface of the first wall of the data storage device housing;
an outer housing that receives the data storage device wherein the outer housing includes a first wall that has an inner surface and an outer surface positioned proximate the first wall of the data storage device housing, the inner surface of the first wall of the outer housing comprising a cross-sectional area; and
a shock support interposed between the outer surface of the first wall of the data storage device housing and the inner surface of the first wall of the outer housing adjacent the location of the motor mounted on the inner surface of the first wall of the data storage device housing wherein the spindle defines an axis and the shock support is positioned so as to intersect the axis and wherein the motor has a motor cup with a first cross-sectional area and wherein the shock support has a second cross-sectional area that is less than the cross-sectional areas of the outer surface of the first wall of the data storage device housing and the inner surface of the first wall of the outer housing and the shock support is positioned such that the first and second cross-sectional areas overlap and so that the shock support contacts the outer surface of the first wall of the data storage device housing substantially over all of the second cross-sectional area.
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Data storage devices such as hard disk drives (HDDs) are typically mounted within enclosures. These enclosures can be portable and can be subjected to external shocks from events like the enclosure being dropped and the like. The hard disk drive includes rotating disks and one or more actuator arms that have pick up heads positioned on an end which travel over the spinning disks to read and write data. Physical shocks to this assembly can result in the drive no longer functioning in a desired manner or can result in lost data or poor performance.
Systems and methods that embody various features of the invention will now be described in reference to the following drawings, in which:
Reference will now be made to the drawings wherein like numerals refer to like parts throughout. As shown in
As the need for disk storage has increased, the number of disks 102 positioned on the spindle 104 has been increased. However, in many implementations, it is desirable to maintain the same form factor as existing hard disk drives so that the greater capacity hard disk drives can be used with existing devices and housings.
In some instances, the form factor can be maintained by making the thickness of one or more walls 108 thinner as is shown by comparison to
While this provides some additional protection to the hard disk drive assembly 100, some walls, such as a base plate 108a, may still be prone to move and deflect in the manner shown in
As shown in
In one implementation, the shock support 120 is formed of a rigid material such as aluminum and in another implementation the shock support 120 is formed of a compressible material such as an elastomeric material such as EPDM rubber. In one implementation, the shock support 120 is formed so as to be in physical contact with both the base plate 108a and the inner wall 122 of the enclosure 112 so that at least a portion of the forces that would be experienced by the hard disk drive housing 106 is transmitted directly through the shock support 120 in the manner shown in
In the implementation of the compressible shock support 120, the shock support 120 may be partially compressed when the assembly 100 is not receiving any shocks. In this way, a portion of the force due to shocks is transmitted by the shock support 120 from the hard disk drive housing 106 and the enclosure 112 and a portion of the force due to shocks may be absorbed by further compression of the compressible shock support 120.
As shown in
As shown in
In this implementation, the shock support 120 is sized so as to be the approximate size of the motor 160 the drives the spindle 104. A significant portion of the mass of the disk drive is located at the motor 160 which is also located near the center of the base plate 108a where the base plate 108a is most likely to deflect. By positioning the shock support 120 in this location, the deflection and deformation of the base plate 108a is reduced.
In various embodiments, a disk drive may include a magnetic disk drive, an optical disk drive, etc. In addition, while the above examples concern a disk drive, the various embodiments are not limited to a disk drive and can be applied to other data storage devices and systems, such as magnetic tape drives, solid state drives, hybrid drives, etc. In addition, some embodiments may include electronic devices such as computing devices, data server devices, media content storage devices, etc. that comprise the storage media and/or control circuitry as described above.
Although the foregoing discussion has shown, illustrated and described embodiments of the present invention and uses thereof, it will be appreciated by those skilled in the art that various changes, substitutions and modifications to the disclosed embodiments and uses thereof without departing from the spirit or scope of the present invention. Hence, the scope of the present invention should not be limited to the foregoing discussion but should be defined by the appended claims.
Jin, Cheng, Tian, Jifang, Hills, Zachary P., Heo, Baekho, Sahebjam-Atabaki, Sara
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